Return-Path: <13brv3@bellsouth.net> Received: from imf19aec.mail.bellsouth.net ([205.152.59.67] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 816161 for flyrotary@lancaironline.net; Tue, 22 Mar 2005 16:13:24 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.67; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf19aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050322211226.ZHCW2054.imf19aec.mail.bellsouth.net@rd> for ; Tue, 22 Mar 2005 16:12:26 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: fuel injector size, and redrive losses Date: Tue, 22 Mar 2005 15:12:34 -0600 Message-ID: <000801c52f23$de644040$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01C52EF1.93C9D040" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C52EF1.93C9D040 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Are you sure you're allowing yourself enough margin on the top end by = using .55 bsfc. This chart (snitched from the other list) indicates that .55 = is about right up to around 7500, but at 8000 rpm bsfc will be up around = .60. What does that do to your hp numbers? =20 =20 =20 Hi Mark, =20 Not sure about the graph, but it's not real likely that I'll be running = over 7500 anyway. As Ken said, the worst that can happen is that it leans = out and I run out of adjustment. I guess I'll know about it then, and re-install my 50 lb/hr injectors. =20 Cheers, Rusty (another scanner taken out by thunderstorms...)=20 ------=_NextPart_000_0009_01C52EF1.93C9D040 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Are you sure = you’re=20 allowing yourself enough margin on the top end by using .55 bsfc.  = This=20 chart (snitched from the other list) indicates that .55 is about right = up to=20 around 7500, but at 8000 rpm bsfc will be up around .60.  What does = that do=20 to your hp numbers? 

 

 

Hi=20 Mark,

 

Not = sure about the=20 graph, but it's not real likely that I'll be running over 7500 = anyway.  As=20 Ken said, the worst that can happen is that it leans out and I run = out of=20 adjustment.  I guess I'll know about it then, and re-install my 50 = lb/hr=20 injectors.

 

Cheers,

Rusty (another = scanner taken=20 out by=20 thunderstorms...) 

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